<template>
  <div :class="{fullscreen:fullscreen}" class="tinymce-container" :style="{width:containerWidth}">
    <textarea :id="tinymceId" class="tinymce-textarea" />
    <div class="editor-custom-btn-container">
      <CodeEditorDialog ref="codeEditorDialog" @successCode="insertCode" :codeDialogOpen="codeDialogOpen" @codeDialogClose="codeDialogClose"/>
      <editorImage color="#1890ff" class="editor-upload-btn" @successCBK="imageSuccessCBK" />
    </div>
 </div>
</template>

<script>
/**
 * docs:
 * https://panjiachen.github.io/vue-element-admin-site/feature/component/rich-editor.html#tinymce
 */
import editorImage from './components/EditorImage'
import plugins from './plugins'
import toolbar from './toolbar'
import load from './dynamicLoadScript'
import CodeEditorDialog from './components/CodeEditorDialog'
import CodeEditorPlugin from './components/CodeEditorPlugin'

// why use this cdn, detail see https://github.com/PanJiaChen/tinymce-all-in-one
// const tinymceCDN = 'https://cdn.jsdelivr.net/npm/tinymce-all-in-one@4.9.5/tinymce.min.js'
const tinymceCDN = 'https://cdn.jsdelivr.net/npm/tinymce@5.2.0/tinymce.min.js'
export default {
  name: 'Tinymce',
  components: { editorImage, CodeEditorDialog },
  props: {
    id: {
      type: String,
      default: function() {
        return 'vue-tinymce-' + +new Date() + ((Math.random() * 1000).toFixed(0) + '')
      }
    },
    value: {
      type: String,
      default: ''
    },
    toolbar: {
      type: Array,
      required: false,
      default() {
        return []
      }
    },
    menubar: {
      type: String,
      default: 'file edit insert view format table'
    },
    height: {
      type: [Number, String],
      required: false,
      default: 360
    },
    width: {
      type: [Number, String],
      required: false,
      default: 'auto'
    }
  },
  data() {
    return {
      hasChange: false,
      hasInit: false,
      tinymceId: this.id,
      fullscreen: false,
      languageTypeList: {
        'en': 'en',
        'zh': 'zh_CN',
        'es': 'es_MX',
        'ja': 'ja'
      },
      codeDialogOpen:false,
      codeEditorPlugin:null
    }
  },
  computed: {
    containerWidth() {
      const width = this.width
      if (/^[\d]+(\.[\d]+)?$/.test(width)) { // matches `100`, `'100'`
        return `${width}px`
      }
      return width
    }
  },
  watch: {
    value(val) {
      if (!this.hasChange && this.hasInit) {
        this.$nextTick(() =>{
          var tiny=window.tinymce.get(this.tinymceId)
          tiny.setContent(val || '')
          tiny.undoManager.clear()
        })
      }
    }
  },
  mounted() {
    this.init()
  },
  activated() {
    if (window.tinymce) {
      this.initTinymce()
    }
  },
  deactivated() {
    this.destroyTinymce()
  },
  destroyed() {
    this.destroyTinymce()
  },
  methods: {
    init() {
      // dynamic load tinymce from cdn
      load(tinymceCDN, (err) => {
        if (err) {
          this.$message.error(err.message)
          return
        }
        this.initTinymce()
      })
    },
    initTinymce() {
      const _this = this
      // 监听键盘按下事件
      document.onkeydown = function() {
      	//判断 Ctrl+S
      	if(event.ctrlKey == true && event.keyCode == 83) {
      		event.preventDefault(); // 或者 return false;
      	}
      }
      window.tinymce.init({
        selector: `#${this.tinymceId}`,
       /* external_plugins: {
          'codesample': 'components/Tinymce/components/CodeEditorPlugin.js'
        }, */
        /* skin: (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'oxide-dark' : ''), */
        language: this.languageTypeList['zh'],
        language_url:"https://cdn.jsdelivr.net/npm/tinymce-i18n@19.9.17/langs5/zh_CN.js",
        height: this.height,
        body_class: 'panel-body ',
        object_resizing: false,
        toolbar: this.toolbar.length > 0 ? this.toolbar : toolbar,
        menubar: this.menubar,
        plugins: plugins,
        end_container_on_empty_block: true,
        powerpaste_word_import: 'merge', //参数可以是propmt, merge, clear
        code_dialog_height:380,
        code_dialog_width: 1000,
        advlist_bullet_styles: 'square',
        advlist_number_styles: 'default',
        imagetools_cors_hosts: ['www.tinymce.com', 'codepen.io'],
        default_link_target: '_blank',
        link_title: false,
        nonbreaking_force_tab: true, // inserting nonbreaking space &nbsp; need Nonbreaking Space Plugin
        quickbars_selection_toolbar: 'bold italic | quicklink h2 h3 blockquote quickimage quicktable',
        contextmenu: "link image imagetools table configurepermanentpen",
        custom_undo_redo_levels:30,
        branding: false,
        fontsize_formats: '8px 9px 10px 11px 12px 13px 14px 15px 16px 17px 18px 19px 20px 21px 22px 24px 26px 28px 30px 32px 34px 36px 48px',
        font_formats:"微软雅黑=Microsoft YaHei,Helvetica Neue,PingFang SC,sans-serif;苹果苹方=PingFang SC,Microsoft YaHei,sans-serif;宋体=simsun,serif;Andale Mono=andale mono,times;Arial=arial,helvetica,sans-serif;Arial Black=arial black,avant garde;Book Antiqua=book antiqua,palatino;Comic Sans MS=comic sans ms,sans-serif;Courier New=courier new,courier;Georgia=georgia,palatino;Helvetica=helvetica;Impact=impact,chicago;Symbol=symbol;Tahoma=tahoma,arial,helvetica,sans-serif;Terminal=terminal,monaco;Times New Roman=times new roman,times;Trebuchet MS=trebuchet ms,geneva;Verdana=verdana,geneva;Webdings=webdings;Wingdings=wingdings,zapf dingbats",

        init_instance_callback:(editor)=> {

          if (_this.value) {
            editor.setContent(_this.value)
            editor.undoManager.clear()
          }
          _this.hasInit = true
          //editor.on('NodeChange Change KeyUp SetContent', () => {
          editor.on('Change KeyUp SetContent', () => {
            this.hasChange = true
            this.$emit('input', editor.getContent())
          })
        },
        setup(editor) {
          editor.on('FullscreenStateChanged', (e) => {
            _this.fullscreen = e.state
          })
          editor.on('keydown', (e) => {//按esc退出全屏
              var keycode=e.keycode||e.which||e.charCode
              if(keycode==27&&_this.fullscreen==true){
                editor.editorCommands.execCommand("mceFullscreen")
              }
              if(keycode== 83 && (e.ctrlKey||e.metaKey)){
                  e.preventDefault()
              		_this.$emit('saveServer')
              		return false;
              }

          })
          //自定义按钮
          editor.ui.registry.addButton('mySaveServer', {
                icon:"browse",
                tooltip: '保存到服务器',
                onAction: () => { _this.$emit('saveServer') }
          });
          //整合codemirror代码编辑器
          _this.codeEditorPlugin= CodeEditorPlugin.install(editor,_this)
        }
        // 整合七牛上传
        // images_dataimg_filter(img) {
        //   setTimeout(() => {
        //     const $image = $(img);
        //     $image.removeAttr('width');
        //     $image.removeAttr('height');
        //     if ($image[0].height && $image[0].width) {
        //       $image.attr('data-wscntype', 'image');
        //       $image.attr('data-wscnh', $image[0].height);
        //       $image.attr('data-wscnw', $image[0].width);
        //       $image.addClass('wscnph');
        //     }
        //   }, 0);
        //   return img
        // },
        // images_upload_handler(blobInfo, success, failure, progress) {
        //   progress(0);
        //   const token = _this.$store.getters.token;
        //   getToken(token).then(response => {
        //     const url = response.data.qiniu_url;
        //     const formData = new FormData();
        //     formData.append('token', response.data.qiniu_token);
        //     formData.append('key', response.data.qiniu_key);
        //     formData.append('file', blobInfo.blob(), url);
        //     upload(formData).then(() => {
        //       success(url);
        //       progress(100);
        //     })
        //   }).catch(err => {
        //     failure('出现未知问题，刷新页面，或者联系程序员')
        //     console.log(err);
        //   });
        // },
      })
    },
    destroyTinymce() {
      const tinymce = window.tinymce.get(this.tinymceId)
      if (this.fullscreen) {
        tinymce.execCommand('mceFullScreen')
      }

      if (tinymce) {
        tinymce.destroy()
      }
    },
    setContent(value) {
      window.tinymce.get(this.tinymceId).setContent(value)
    },
    getContent() {
      window.tinymce.get(this.tinymceId).getContent()
    },
    codeDialogClose(){
       this.codeDialogOpen=false;
    },
    editCode(data){
      this.$refs.codeEditorDialog.setCode(data)
    },
    insertCode(c){
      this.codeDialogOpen=c.codeDialogOpen
      this.codeEditorPlugin.setContent(c)
      //tinymce.dom.DOMUtils.DOM.encode(c.code)
     // c.code&&window.tinymce.get(this.tinymceId).insertContent(tinymce.dom.DOMUtils.DOM.encode(c.code))
    },
    imageSuccessCBK(arr) {
      const _this = this
	    const imgserver=this.$imgServer
      arr.forEach(v => {
        window.tinymce.get(_this.tinymceId).insertContent(`<img class="wscnph" src="${imgserver}${v.url}" >`)
      })
    }
  }
}
</script>

<style scoped>
.tinymce-container {
  position: relative;
  line-height: normal;
}
.tinymce-container>>>.mce-fullscreen {
  z-index: 10000;
}
.tinymce-textarea {
  visibility: hidden;
  z-index: -1;
}
.editor-custom-btn-container {
  position: absolute;
  right: 4px;
  top: 4px;
  z-index: 9000;
  display: flex;
  justify-content:flex-end;
}
.editor-custom-btn-container .upload-container{
  margin-right: 5px;
}
.fullscreen .editor-custom-btn-container {
  z-index: 10000;
  position: fixed;
}
.editor-upload-btn {
  display: inline-block;
}
</style>
